Wireless Transmit Power Adjustment via Target Wake Time
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently adjusting wireless transmit power to maintain stable AR experiences while minimizing power consumption, especially in wearable devices with limited battery capacity.
Innovation Solution
The proposed solution involves an electronic device and an external device that perform a target wake time (TWT) setup, including TWT duration and target wake interval, to adjust transmit power based on signals exchanged during this time, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless transmit power is increased to maintain stable AR experience, then connection reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic transmit power adjustment by continuously monitoring connection status and AR service requirements, then adapting the transmit power level in real-time. This resolves the contradiction by transitioning from a static high-power mode to a dynamic system that uses high power only when necessary for connection stability, thereby reducing overall power consumption while maintaining reliability.
Solution Approach 2:
The system changes the transmit power parameter based on monitored conditions such as connection stability metrics and AR service quality requirements. By adjusting this critical parameter dynamically rather than maintaining a fixed high value, the system achieves both connection reliability and power efficiency.
2Use of energy by moving object
If wireless transmit power is decreased to minimize power consumption, then battery life is extended, but connection stability deteriorates
Solution Approach 1:
The system dynamically adjusts transmit power based on real-time monitoring of connection status and AR service requirements. This resolves the contradiction by using low power only when connection conditions permit, while automatically increasing power when stability issues arise, thus extending battery life without sacrificing connection reliability.
Solution Approach 2:
The patent implements a feedback mechanism that monitors connection stability and AR service quality, then uses this information to adjust transmit power levels. This closed-loop control ensures that power is increased only when necessary to maintain connection stability, thereby extending battery life while preventing connection deterioration.
3Reliability
If continuous signal transmission is maintained to ensure smooth AR experience, then service quality is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic TWT setup procedures where the electronic device and external device establish wake schedules and transmit signals only during designated wake periods. This periodic action resolves the contradiction by replacing continuous transmission with scheduled intermittent transmission, maintaining service quality during active periods while dramatically reducing power consumption during sleep periods.
Solution Approach 2:
The system maintains continuous AR service quality during wake periods through scheduled signal transmission, while achieving overall power efficiency through continuous sleep periods between wake cycles. This creates a continuous pattern of useful action interspersed with power-saving intervals, resolving the contradiction between service quality and power consumption.
4Use of energy by moving object
If TWT setup with signal exchange is implemented to adjust transmit power, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The patent implements TWT setup as a multi-functional mechanism that simultaneously achieves power consumption reduction, transmit power adjustment, and connection management. By consolidating these functions into a single standardized protocol exchange, the system reduces overall complexity despite the added power management capabilities.
Data Source
AI summary
According to various embodiments of the disclosure, an electronic device includes: a display, a communication circuit, a memory storing instructions; and at least one processor operatively connected with the display, the communication circuit, and the memory, and when the stored instructions are executed, the at least one processor is configured to: control the electronic device to perform wireless connection with an external device using the communication circuit, performs a target wake time (TWT) setup including a TWT, a TWT duration, and a target wake interval with the external device, control the electronic device to transmit a first signal to the external device within the TWT duration, control the electronic device to receive a second signal from the external device within the TWT duration, determine an adjustment transmit power based on the first signal and the second signal, and control the electronic device to transmit data using the adjustment transmit power.